about the treatment of the dead from Malaysia air flight 17. Today armed pro-russian rebels seized the 196 bodies that emergency workers had recovered from that farm land in eastern Ukraine where the plane went down on Thursday. The rebels are holding the bodies inside these train cars in a nearby rail yard. Recent pictures like this one of crash victims laying on the side of the road with strangers free to pick through their personal belongings have outraged the victims' families and world leaders. We have full coverage tonight starting with ABC's terry Moran who's on the ground. Reporter: Good evening. Tonight the crash site and the victims' bodies remain with the rebels here while the U.S. Builds a damming case against them and against Vladimir Putin's Russia. All day emergency workers carried on their grim work of gathering bodies but there's no investigation being done here for wounds or other potential evidence on or around the bodies, the bags just laid out along the roads and turned over to rebel authorities who are taking them to a nearby village for storage. Inside these refrigerated boxcars lie the remains of nearly 200 of the dead of flight 17. For nearly three days they lay out in the sun at the crash site. Their ultimate destination remains unknown and in dispute. They're in limbo. The crash site itself still unguarded. All the evidence still unexamined. 102 bodies still unaccounted for from the crash. ABC news spoke exclusively with the rebels' prime minister who told kirit radio he's keeping out bodies until international experts arrive. But the U.S. Government continues to build a case against the rebels and Russia. Secretary of state Kerry leveling a blunt indictment on "This week." There are an enormous array of facts that point at Russia's support for and involvement in this effort. Reporter: Among those facts, the U.S. Claims, a missile launch from a rebel-held area was detected by U.S. Intelligence at the time the Malaysian airlines flight vanished from contact with the ground. Audio intercepts released by Ukraine of rebel leaders discussing the shootdown. Determined to be authentic by U.S. Analysts. U.s. Sighting of a Russian convoy of 150 vehicles carrying heavy vehicle equipment entering Ukraine last weekend. We learned that three anti-aircraft missile systems were brought down before the shootdown and were quickly spirited back across the border after. Russia has armed the separatists, supported the separatists and trained the separatists. Reporter: This video shot Friday apparently showing a worker recovering what looks like the plane's flight recorder, rebel leaders now claiming they are holding both the plane's black boxes. A new tape released by the Ukraine government seems to provide more evidence, rebel leaders talking about hiding those black boxes on instructions from Moscow, saying they must be under our control. Dan? Terry, thank you.

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